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<p>Technological developments have triggered the emergence of various kinds of learning media innovations. Learning media is a very important part of the learning process. In this study, researchers designed a learning media in the form of a virtual laboratory on the practicum material of the basics of analytical chemistry which is integrated with multi-representation triplets to create and describe the results of learning media.</p>The method used in this development was Research and Development (R&amp;D) method using the 4-D (four-D) development model. Data collection used qualitative and quantitative data. The qualitative data were in the form of comments and suggestions from the validator, while the quantitative data were the validation questionnaire and legibility test. The results showed that the validation of the material obtained a percentage of 84% (very valid), media validation of 78% (valid), and the results of trials on correspondents obtained a percentage in the range 81-92% (very valid). It can be concluded that the virtual laboratory learning media on the analytical chemistry laboratory material with the integration of the developed multi-representation triplet explanations is feasible to use, especially in the practicum of the basics of analytical chemistry on the topic of group I cation analysis and argentometry. This shows that the virtual laboratory developed has the potential to support online practicum learning, and the macroscopic, submicroscopic, and symbolic depiction in the virtual laboratory can help the process of receiving information by students

The voltaic cell teaching materials used in high school are still in the form of textbooks that do not present multiple representations of chemistry, namely the macroscopic, submicroscopic, and symbolic levels. The three levels of chemical representation can be visualized using flipbook teaching materials so that students are expected to understand the voltaic cell material. Teaching materials are used to support the learning process. Current learning still uses conventional learning models that only focus on teachers. Constructivist-based active learning is needed because it involves students so that learning is more meaningful. One of the constructivist learning models is the guided inquiry learning model which includes observing, asking questions, compiling hypotheses, gathering information, testing hypotheses, and concluding. The purpose.of this development.is to.produce a proper guided inquiry-based flipbook teaching material. The flipbook teaching.materials were developed.using the Four-D model (define, .design, .develop,and.disseminate) but the disseminated stage was not carried out. Media and material validation was carried out by five chemistry lecturers. The legibility test was carried out by 50 high school alumni with a specialization in Science. The assessment uses a Likert scale accompanied by comments, suggestions from the validator, and audience. The data obtained from the analysis questionnaire to determine the feasibility level of the product using the percentage technique. The validation of the flipbook teaching materials development product in terms of material obtained an average score of 85.4%, validation in terms of media.obtained.an.average percentage of 85.5%, while the readability test results obtained.an.average.percentage of 87%. Based on the results.of material validation, media, and legibility tests, it can be concluded that the flipbook teaching materials guided inquiry-based voltaic cells are very suitable as a learning resource.

Abstrak-Masalah yang berkaitan dengan praktikum bisa menjadi alasan mengapa siswa tidak dapat memahami kimia dengan baik. Pada dasarnya, dengan melakukan praktikum konfirmatif, siswa menjadi tidak kreatif karena tidak memiliki banyak kesempatan untuk mengeksplorasi percobaan. Selain itu, praktikum di laboratorium nyata tidak menunjang pemahaman konseptual siswa pada tingkat sub-mikroskopis yang merupakan salah satu persyaratan dalam memahami topik kimia seperti asam basa. Oleh karena itu, penelitian ini bertujuan untuk mengembangkan virtual lab berbasis android sebagai sumber belajar bagi siswa SMA pada topik asam basa. Virtual lab dalam penelitian ini dikembangkan dengan mengadaptasi model pengembangan pembelajaran multimedia oleh Lee dan Owens (2004). Tingkat kelayakan virtual lab hasil pengembangan dari segi fungsinya sebagai media pembelajaran berdasarkan hasil penilaian oleh pakar dan pengguna adalah 85,44%; sedangkan dari segi akurasi konsep adalah 84,67%, sehingga virtual lab yang dikembangkan dapat dikategorikan sangat layak untuk diimplementasikan sebagai media pembelajaran. Virtual lab hasil pengembangan diujicoba pada 12 siswa SMA; dan setelah itu mereka diminta untuk memberikan persepsi kuantitatif terhadap virtual lab menggunakan kuesioner dan hasilnya sebesar 89,27%. Hal ini juga mendukung tingkat kelayakan virtual lab sebagai media pembelajaran. Keunggulan virtual lab hasil pengembangan meliputi: (1) dilengkapi dengan pretes untuk mendukung kesiapan siswa sebelum praktikum dan postes untuk mengukur tingkat pencapaian pemahaman siswa setelah menggunakan produk; (2) dilengkapi dengan visualisasi partikulat yang menunjang pemahaman konseptual siswa pada level sub-mikroskopis; (3) dapat digunakan secara linear atau nonlinier dengan memilih menu yang diinginkan; (4) efisiensi alat, bahan dan waktu meskipun simulasi dilakukan sesering yang diinginkan siswa.

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This Currently, technology-based learning media is needed to attract students' learning interest. Augmented Reality and Hologram, both technologies are able to answer these problem. In addition, the Ludo Game can also increase the student’s learning interest when applied as a learning media. This study aims to: developing a learning media based on Augmented Reality, Hologram, and Ludo Game on the topic of molecular shapes, as well as knowing the feasibility of this learning media. Research and Development (R&D) is used as research methods. The development of media adapted the ADDIE model, which includes the stage: assessment/analysis, design, development, implementation, and evaluation. The feasibility of this learning media is based on the results of product validation as a learning media, material, and small group trials of 17 Senior High School students. The results of study found that the percentage of product validation results as a learning media is 85,56% (very feasible), material  is 88,00% (very feasible), and small group trials is 87,25% (very feasible). Based on this, it can be concluded that this learning media is very feasible to be implemented in the study on the topic of molecular shapes.

In electrolysis cell chemistry learning material students still experience Difficulties related to chemical material roomates characteristics include three levels of representation macroscopic, submicroscopic, and symbolic. Therefore, the chemistry should be taught by inquiry strategies must be supported a program that is Able to visualize particulate material aspects in an electrolytic cell, such as Augmented Reality. The purpose of this study was to produce guided inquiry-based teaching materials assisted by Augmented Reality on the topic of electrolysis cells. . The development of teaching materials is Carried out in three stages namely (1) analysis phase, (2) design phase, and (3) development stage. Teaching materials are validated by three expert validator. The results of the validation Obtained a percentage of 87. 6% for aspects of the assessment in terms of media, 86.1% for aspects of the assessment in terms of material and 87.4% for the readability test. This indicate that the chemistry teaching material that has been developed is included in the very feasible category so that it can be used as a support in learning activities electrolysis cell material